“WHAT do you suppose they want?” asked Joe, as the youths followed the movements of the Arabs.
“They’re not there for any good,” returned Bob, a look of anger, and at the same time anxiety, on his face. “Probably want to find that map that tells of the hidden treasure. Oh, of course it could be a coincidence that they picked the same hotel that we did, but it isn’t likely.”
The boys watched the suspicious characters until they disappeared into the hotel. Then Joe suggested that they cautiously follow.
“All right,” Bob agreed. “But we must be careful and not get too close. They might have guns and think nothing of using them, and they could probably get away in this country.”
Slowly the youths moved up to the entrance and peeped around the corner. Satisfied that there was no one in sight, they went inside.
“Nobody here but our dads and Dr. Kirshner,” observed Bob, glancing about. “I wonder if they noticed the Arabs?”
“Let’s ask them.”
The men had noticed the fellows, they said, but thought nothing about it. Why? Was anything wrong?
Bob explained that they were the two who had acted in a suspicious manner on the ship, and at once the scientists’ faces lightened.